TYPO3 Core

I have no such CPU here, so please debug, and make sure it's not a PHP problem.

1) Check what t3lib_div::tempnam() is doing
2) Paste the contents into a separate PHP file and try the same again
3) As you will see, the PHP function tempnam() is simply called with a path prefix. So you should check how this path looks like...

I have found the position of the 'problem'..
In t3lib/class.t3lib_div.php there's the function function tempnam($filePrefix)
The function returns the path, including "typo3temp/"
PHP adds "\" and the filename.. So one slash comes from T3, the other from PHP. Maybe there should be a check, whether there's a slash in the PHP return..

Look here to see how tempnam() should work: http://ch2.php.net/tempnam

Especially watch the comment of "lreilly at lanl dot gov" at the end of the page.

To me this doesn't look like a TYPO3 issue at all..

right, but as M$ won't fix such a thing, it could be implemented into T3. As this seems to be a very important function of T3 it might be useful.. wouldn't it?

It's not a Microsoft bug, it rather seems like a PHP bug!

Resolved, no change required:

- No further feedback for a long time
- Not a TYPO3 bug

Please reopen if this still happens in recent TYPO3 & PHP & Win versions to investigate further.